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Updated: Apr 27, 2026
Location and Projects
Address
370 LANG RD, Burlingame, CA, 94010
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Sdi Insulation Inc
Sdi Insulation Inc, 370 Lang Rd, Burlingame, CA (Employee: Steven Brett De Lorenzi) holds a Insulation And Acoustical, Weatherization And Energy Conservation, Prefabricated Equipment, General Building license and 4 other licenses according to the California license board.
Their BuildZoom score of 101 ranks in the top 12% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Sdi Insulation Inc, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Sdi Insulation Inc Services
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Sdi Insulation Inc Contact Information
Phone Number: (650) 875-1628
Address: 370 LANG RD, Burlingame, CA 94010
This is a sample of this contractor's permits. Click here to access their complete permit history.
Work category: 2m ; **final inspection for expired plumbing mechanical permit#pm20181228846** mechanical gas fireplace to be installed by direct vent natural gas fireplace to installed per mfp requirments. 1 unit @ master bedroom a at living room 201601076586 ref change 2 to 3 unit
Valuation:
N/A
Permit #:
PMW20200619324
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Attic and floor area insulation replacement and air sealing package. section 110.7 mandatory reg. to limit air leakage. all joints penetrations and other openings in the building envelope that are potential sources of air leakage shall be caulked gasketed weather stripped or otherwise sealed to limit infiltration and exfiltration. (per 2016 building energy efficiency standards.) see ... see more
Valuation:
N/A
Permit #:
B18-0833
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replacing (e) fireplace
Valuation:
N/A
Permit #:
BLDG2023-0394
Status:
final
Fee:
$615
Permit Type:
Alteration_434
Building Type:
N/A
Remove old heaters furnaces and install two new bryant 40, 000 btu upflow 95% efficient furnaces in the garage
Valuation:
N/A
Permit #:
PM20191219129
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Renewal of permit pmw20171227214: work category: 1m; install direct vent gas fireplace and venting. framing gas and power by other
Valuation:
N/A
Permit #:
PM20190129700
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Kitchen & bathroom: upgrade electrical install cabinets plumbing fixtures
Valuation:
$14,000
Permit #:
201909050698
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
28 - 2 family dwe...
Work category: 1m; supply and install natural gas direct vent fireplace and vent/flu pipe. gas and electrical work for this job will not be completed by us
Valuation:
N/A
Permit #:
PMW20180625703
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 2m ; installing supply and gas insert fireplace. install following installation manual
Valuation:
N/A
Permit #:
PMW20190422423
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Inserting a gas fireplace into existing masonary chimney. plumibing and electrical was ran
Valuation:
N/A
Permit #:
PM20191007050
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 1m; supply and install direct vent natural gas fireplace. framing gas and electrical work to be done by other
Valuation:
N/A
Permit #:
PMW20180522003
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 2m ; direct vent gas fireplace installed
Valuation:
N/A
Permit #:
PMW20201104068
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 1m; installation of a gas fireplace
Valuation:
N/A
Permit #:
PMW20200630595
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 1p; installing a gas fireplace
Valuation:
N/A
Permit #:
PW20200714936
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Kitchen & bathroom remodel replace fixtures
Valuation:
N/A
Permit #:
PP20190905111
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Installation of gas line and insert (gas line as owner/builder)
Valuation:
$4,500
Permit #:
51692-19
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace wall heater with fireplace
Valuation:
$4,500
Permit #:
52017-20
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace wall heater with fireplace
Valuation:
$4,500
Permit #:
52016-20
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install gas insert in wood burning fireplace
Valuation:
$5,000
Permit #:
50998-19
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 1m; supply and install direct vent natural gas 42 fireplace
Valuation:
N/A
Permit #:
PMW20180522004
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Upgrade electrical. remodel kitchen & bathroom
Valuation:
N/A
Permit #:
E201909053916
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Sdi Insulation Inc Reviews
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Verified License
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Sdi Insulation Inc License info
Verified License
| License # | 607274 |
| Status | Active |
| State | California |
| Type | Insulation And Acoustical, Weatherization And Energy Conservation, Prefabricated Equipment, General Building |
| Business Type | Corporation |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for Sdi Insulation Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 3019 |
| Status | Active |
| State | California |
| Business Type | Corporation |
- When BuildZoom last verified this license, it had an expiration date of March, 2023. Check the current license status of Sdi Insulation Inc with the California Architect License Board
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 0003019 |
| Status | Active |
| Town | Woodside |
| Type | Subcontractor |
| Business Type | Corporation |
- When BuildZoom last verified this license, it had an expiration date of November, 2016. Check the current license status of Sdi Insulation Inc with the The Town of Woodside, CA
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 6072542 |
| Status | Active |
| Town | Woodside |
| Type | Subcontractor |
| Business Type | Corporation |
- When BuildZoom last verified this license, it had an expiration date of November, 2016. Check the current license status of Sdi Insulation Inc with the The Town of Woodside, CA
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | NAT-31571-2 |
| Status | Inactive |
| Nation | Environmental Protection Agency |
| Type | Renovation |
| Business Type | Corporation |
- According to the United States Environmental Protection Agency, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Sdi Insulation Inc at the United States Environmental Protection Agency.
This is a sample of licensing data; click here to access a complete history.
101
BuildZoom Score
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Cypress Insurance Company |
166
Permits
- Building permit records show that Sdi Insulation Inc has worked on 166 permitted projects.
Sdi Insulation Inc Employees
SI
Sdi Insulation Inc
Owner
SL
Steven Brett De Lorenzi
Officer
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